Ball-bearing rail



J; PIERPGINT.

BALL BEARING RAIL.

APPLICATION FILED OCT- 8| 1921.

1,404,641,` Patented Jan. 24, 1922,

PATENT OFFICE.

JESSIE PIERPOINT, OF YONKERS, NEW YORK.

BALL-BEARING RAIL.

Application led October 8, 1921.

To all 'whom t may concern Be it known that I, Jnssin PrnnroiN'r, acitizen of the United States, residing at Yonkers, in the county oflllestcliester, State of New York, have invented certain new and usefulImprovements in Ball-Bearing Rails; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

rThis invention relates to new and useful improvements in railwayappliances and particularly to attachments for railway rails.

One object of the invention is to provide an antifriction means for therails of a l curve againstl which the wheels of a train are adapted tobear to relieve the wheels and rails of wear and strain, the attachmentbeing so constructed and arranged that it may be readily applied to therails now in use without any modifications to the rails, ordisplacements thereof.

Another object is tov provide a device of this character which is simplein construction, is readily applicable to the ordinary railway curves,and which can be manufactured at a comparatively low cost.

Other objects and advantages will be apparent from the followingdescription when taken in connection with the accompanying drawing.

1n the drawing:

Figure 1 is a top plan view of a railway curve showing the inventionapplied thereto.

Figure 2 is a side elevation of the same.

Figure 3 is an enlarged vertical transverse sectional view on the line 83 of Figure 1. Referring particularly to the accompanying drawing, thereare shown the inner and outer rails 10 and 11, of the curve of arailway, in connection with which the present invention is adapted foruse. Each of the raiis includes the tread 12, web 13, and base flanges14. The rails 10 and 11 are secured to the usual ties 15.

Disposed on the end portions of the ties, outwardly of the outer rail10, is a curved rail 16, including a base flange 17, a vertical web 18,and an upper outwardly extending portion 19. The lower end of the webhas formed thereon thev downwardly and in- Speccaton of Letters Patent.

Patented Jan. 24, 1922.

Serial No. 506,335.

wardly extending lugs 20 which engage beneath the base of the rail 10,while the base of the rail 16 rests on the upper faces of the tie ends.The web 18, of the rail 16 is disposed in close proximity to the web ofthe rail 10, as clearly seen in the section Figure 3, with the upperface thereof disposed beneath the tread of the rail 10. The innerportion of the member 19 is formed with a longitudinally extendin@rgroove or race 21 in which are located t e series of bearing balls 2Q,the groove and balls being located above the tread face of the rail 1()to be engaged bythe side face of the car wheel 23, as the car rounds thecurve. Between the member 19 and the base 17, are formed the bracingwebs 27 which support the member 19 against the outward and downward'pressure of the wheels against the balls and the member 19. The rail 16is secured to the ties by means of the spikes 25, which extend throughthe entire length of the curved portion of the rail 10. The

upper and lower walls of the groove or race 21 extend inwardly beyondthe centers of the balls 22 whereby the balls areI secured within thegroove, while being permitted to rotate freely therein, as the wheelengages therewith.

The peculiar construction and arrange ment of the rail 16, with respectto the rail 10 and the ties 15, effectively prevent movement of the rail16 in any direction, while rendering it unnecessary to modify theconstruction of the rail 10.'

1V hat is claimed is:

An attachment for a railway curve comprising a curved rail having a baseflange formed with downwardly inclined lugs, a vertical web, and alongitudinally grooved upper portion, and bearing balls disposed in thegrooved portion, the said grooved portion being formed to lie above thetread portion of a railway rail and to have its lower portion underliethe said tread portion, with bracing webs extending between the baseflange and the upper grooved portion.

In testimony whereof, I aix my signature, in the presence of twowitnesses.

JESSIE PIERPOINT.

